Home / 5,079.43-7,615.36-3,431.35

Finding the Fourth Proportional to 5,079.43, 7,615.36 and 3,431.35

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Solution

The fourth proportional to 5,079.43, 7,615.36 and 3,431.35 is: 5,144.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,079.43 : 7,615.36 = 3,431.35 : x
  2. Step 2: Convert to fraction form
    5,079.43/7,615.36 = 3,431.35/x
  3. Step 3: Cross multiply
    5,079.43x = 7,615.36 × 3,431.35
  4. Step 4: Simplify right side
    5,079.43x = 26,130,965.54
  5. Step 5: Solve for x
    x = 26,130,965.54/5,079.43
  6. Step 6: Final answer
    x = 5,144.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.